Gas burner



F. W. SKINNER.

GAS BURNER.

APPLICATION FILED ocr. Io. 1921.

1.4.34,159. Emme@ IICI. SII, w22.

l @2M 1 :IM f" IIIIIII III IIIIII I l IIIIHII Il [I Ill Hl Patented @et331, T1922.

FRANK W. SKINNER', 0F TAFT, CALIFORNIA.

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GAS BURNER.

Application led ctober 10, 1921. ASerial No. 506,599. y

To all 'whom t may concern.'

Be it known that l, FRANK v j a citizen of the United States, residingat Taft, in the county of Kern and State of` California, have inventednew and .useful improvements 1n Gas Burners, of `which the following isa specification.

rllhis invention relates to gas burners and is particularly directed toa burner especially adaptable for firing furnaces. u

The objects of the invention are, to provide a burner having a burnertube in which the gas supply is directed in hollow cone formation acrossthe area of the tube so that all the air entrained through the tube toform with the gas a combustible mixture ,must pass through the gasconegto provide means independently varying the amount of air entrainedthrough the tube; to provide means independently varying the volume ofvthe gas cone; and to provide means for combining steam with the gasbefore 1t enters the tube.

Various other objects' and advantages will be more fully apparent fromthe following description of the accompanying drawings which form a partof this disclosure, and which illustrate a perferred form of embodiAment of the invention.

Of the drawings:

Fig. 1 is a vertical section through a por! tion of a furnace with myimproved type of burner installed therein.

Fig. 2 is an enlarged section through the rear portion of the burner.

Fig. 3 is a section on line 3-m3 of Fig 2.

In the preferable method of installation as illustrated in Figure 1 theburner projects downwardly at an angle through an opening in the furnacewall with its axis in line with a baffle wall extending across the floorof the furnace, there being no air admitted through the opening throughwhich the burner pro- `ects. v J The burner comprises a burner tube 1and a burner head 2 screw-threaded on the outer end of the tube, saidhead having a gas nozzle 3 projecting axially into the tube andcentrally bored to accommodate the fuel control mechanism. The burnerhead 2 is: provided with a plurality of circularly spaced air inletports 1 and rotatable on the head is a sleeve valve member 5 having alike number of openings. and constituting a means by which the airadmitted to the burner may be independently controlled. A

set screw 6 carried bythe sleeve 5 engages the head 2 and serves as ameans for retaining the sleeve in adjusted position.A j n Thev forwardvedge ofthe gas nozzle is tapered outwardly to form an angled valve seat7 and cooperating with saidv seat is a valve 8, of coneformation, theseat and valve cooperatingto form an annular fuel orifice angled todirect the fuel into the burner tube in hollow cone formation andagainst the side walls ofthe tubey so that all the air entrained throughthe airinlet ports 4 must pass through such gas cone. j ,j

The valve v8 is carriedbya valve stem 9 70 which extendsrearwardly-through a plug 10 screw-threaded into the burner vhead *and*through a. stuiiingbox 11. The stem hasja screw-thread.engagement lwiththe plugk 10 and by turning the stem by the handle 12 ythe 75 `y valve 8may be translated to vary the volume of the fuel fed into the burnertube.

An inner tube 13 surrounding the valve stem, is screw-threaded into theplug 10 and projects forwardly to a point just rearwardly of the fuelvalve 8 and a steam supply pipe 14 is screw-threaded into the side ofthe plug 10 and is in communication with the inner tube 13. A gas supplypipe 15 is screw-threaded into the side of the burner head 2 andcommunicates with the bore o the fuel nozzle 3.

In the operation of the burner the gas under pressure is fed from thefuel nozzle 3 in the form ofa hollow cone directed forwardly and towardsthe walls of the burner tube. By this arrangement all of the air whichis combined with the fuel in the burner must pass through the fuel conethereby causing a very intimate mixture of the fuel and air.

This, in effect, produces` a thin partition of fuel across the entirearea of the tube with the air passing through such fuel partition in amanner by which the maximum area of the fuel molecules will be exposedto intimate contact by the air in its passage through the fuelpartition.

Such arrangement results in a perfect mixture contributing to maximumburner eliciency.

In some instances it is desirable to combine a certain amount of steamwith the fuel and to meet such conditions the burner is provided withthe inner tube 13 by which 110 steam is conducted to the nozzle andcombined with the fuel.

gj fr 1 v 1,434,159

lt is, not intended to? confine Athe invention v to the' onefrmorrnI oi`embodiment-'herein illusL trated and described, for it issusceptible-oiY embodiment in Various othery forms all corning Withinthe scope of" the claims whichV `follow. :.f.

l claim: u l. A gas burner cornplingl'a fuelfnoi'zle tube having anannular seatat its forward endland; a closure'"atits're'arv en'd, a"Aconev t valveicooper'ating with saidf seat-to'iornr annular:tuel0r1ice,-apValve stern connected Y A to'tlieape of'tlieValVeandihavingascrewtube p 'astitlieffuel inletto;A a point adj acent"th`e`1-c'one' Valve", vSaid lSteam" tubef 'having an j operi*"orvva-r'd@end for discharging steam vdirectly along the rod andagainst" the Valve 'surfa'ce` to thoroughly scour the' ro'dIl and valve@sur-ace,"v a'nda steam l inlet? `or' the ste'arn tube.v

agf-as'lburner", a burnertube havingani ai-if inlet; l a u'el'j nozzleaxially aligned Wit-hand'y extending into the tubeV beyond the air'iii-'iler with ite forward" end J'orrned to provide an annular valveseat, a cone Valve cooperating with Said seat to form an annular fuelorifice directing a hollow cone shaped column of fuel ytowards the tubeWalls, a itting closing the rear end'of the nozzle@and?havingfavsteaminlet, a valve actuating rod Secured to ythe apexV end of the cone Valve'anchham`1if a. screw thread" engagement 'in Said iitting` rearwardlyspaced from,v the 'rod`- and'v having an' open inne'r enddischarging's'tearn directly along Y the rod?and' against the'valVesura-'ce 'tol thoroughly scour the*rodzfandvalvesurface;

the rod' being" entirely `Supported" lby said fitting.-

signed-a Tae;oaiifmm;nieuwe'day

